<!--
  This file is a part of the open-eBackup project.
  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
  If a copy of the MPL was not distributed with this file, You can obtain one at
  http://mozilla.org/MPL/2.0/.
  
  Copyright (c) [2024] Huawei Technologies Co.,Ltd.
  
  THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
  EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
  MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  -->


<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
   
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="DC.Type" content="topic">
<meta name="DC.Title" content="Restoring a NAS File System (Applicable to OceanProtect X Series Backup Appliances)">
<meta name="product" content="">
<meta name="DC.Relation" scheme="URI" content="en-us_topic_0000002200131633.html">
<meta name="prodname" content="">
<meta name="version" content="">
<meta name="brand" content="">
<meta name="DC.Publisher" content="20250306">
<meta name="prodname" content="csbs">
<meta name="documenttype" content="usermanual">
<meta name="DC.Format" content="XHTML">
<meta name="DC.Identifier" content="EN-US_TOPIC_0000002200046005">
<meta name="DC.Language" content="en-us">
<link rel="stylesheet" type="text/css" href="public_sys-resources/commonltr.css">
<title>Restoring a NAS File System (Applicable to OceanProtect X Series Backup Appliances)</title>
</head>
<body style="clear:both; padding-left:10px; padding-top:5px; padding-right:5px; padding-bottom:5px"><a name="EN-US_TOPIC_0000002200046005"></a><a name="EN-US_TOPIC_0000002200046005"></a>

<h1 class="topictitle1">Restoring a NAS File System<span> (Applicable to OceanProtect X Series Backup Appliances)</span></h1>
<div><p>This section describes how to restore a NAS file system that has been backed up to the original location or a new location.</p>
<div class="section" id="EN-US_TOPIC_0000002200046005__section14342462311"><h4 class="sectiontitle">Context</h4><p id="EN-US_TOPIC_0000002200046005__p13356226151412">The <span id="EN-US_TOPIC_0000002200046005__text143181219121420">OceanProtect</span> supports restoration to the original location or a new location using backup copies, archive copies (data cannot be restored to the original location using archive copies generated by replication copies), imported archive storage copies, or replication copies (data cannot be restored to the original location).</p>
</div>
<div class="section"><h4 class="sectiontitle">Prerequisites</h4><ul><li id="EN-US_TOPIC_0000002200046005__li558413141988">To restore a NAS file system to a new location, a storage device residing at the new location needs to be added to the <span id="EN-US_TOPIC_0000002200046005__text1511818204144">OceanProtect</span>. For details about how to add a storage device, see <a href="en-us_topic_0000002200131529.html">Step 2: Adding a Storage Device</a>. The following lists the supported storage device types.<ul id="EN-US_TOPIC_0000002200046005__ul1094984711471"><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000001792360666_li3415133617174">OceanStor Dorado V700R001</li><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000001792360666_li1739551514266">OceanStor V700R001</li><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000001792360666_li984654311123">OceanStor Dorado 6.x</li><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000001792360666_li151737411958">OceanStor 6.x</li><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000001792360666_li72988389413">OceanProtect 1.3.0 and later versions</li><li id="EN-US_TOPIC_0000002200046005__li15575172132717">OceanStor V5</li><li id="EN-US_TOPIC_0000002200046005__li632419162715">OceanStor Pacific</li><li id="EN-US_TOPIC_0000002200046005__li207631011131214">NetApp ONTAP</li></ul>
</li></ul>
<ul><li id="EN-US_TOPIC_0000002200046005__li11503162395513">If a NAS file system is restored to a new location, create a target NAS file system on the storage device where the new location resides and configure a NAS share that uses the same share protocol as the copy to be restored. This is because the NAS file system is restored to a new location through NAS share. Therefore, you need to configure NAS share. </li><li id="EN-US_TOPIC_0000002200046005__li17945216184613">If you want to restore a NAS file system to a new location, you need to configure the access permission for the <span id="EN-US_TOPIC_0000002200046005__text17718172011416">OceanProtect</span> on the new storage device. For details, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>. During the operation, configure a client or add a user for the target NAS share.</li></ul>
</div>
<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li id="EN-US_TOPIC_0000002200046005__li0198134611381"><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_uicontrol097351016491"><b><span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_text79731210144915"><strong>Explore</strong></span> &gt; <span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_text797381084918"><strong>Copy Data</strong></span> &gt; File Systems &gt; <span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_text75601138121416"><strong>NAS File Systems</strong></span></b></span>.</span><p><div class="note" id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_note414014816184"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_p15140194811813">For 1.5.0, choose <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_uicontrol117221257171816"><b><span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_text1772265701816"><strong>Explore</strong></span> &gt; <span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_text1272245713186"><strong>Copy Data</strong></span> &gt; File Services &gt; <span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002199964685_text2072255721815"><strong>NAS File Systems</strong></span></b></span>.</p>
</div></div>
</p></li><li id="EN-US_TOPIC_0000002200046005__li87691438131514"><span>Copies can be searched by NAS file system resource or copy. This section uses the NAS file system resource as an example.</span><p><p id="EN-US_TOPIC_0000002200046005__p142551140161511">On the <span id="EN-US_TOPIC_0000002200046005__text6827103218214"><strong>Resources</strong></span> tab page, locate the NAS file system to be recovered by file system name and click the name.</p>
</p></li><li id="EN-US_TOPIC_0000002200046005__li02165214225"><span>On the <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__uicontrol1812414562220"><b><span id="EN-US_TOPIC_0000002200046005__text18993182162710"><strong>Copy Data</strong></span></b></span> page, select the year, month, and day in sequence to locate the copy.</span><p><p id="EN-US_TOPIC_0000002200046005__p9918150182310">If <span><img id="EN-US_TOPIC_0000002200046005__image886000161711" src="en-us_image_0000002200131661.png"></span> is displayed under a month or date, copies exist in the month or on the date.</p>
</p></li><li id="EN-US_TOPIC_0000002200046005__li7995952193812"><span>In the row of the target copy, choose <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__uicontrol4705161613273"><b><span id="EN-US_TOPIC_0000002200046005__text04951528155216"><strong>More</strong></span> &gt; <span id="EN-US_TOPIC_0000002200046005__text12444191814117"><strong>Restore</strong></span></b></span>.</span></li><li id="EN-US_TOPIC_0000002200046005__li13884134201718"><span>For 1.6.0, select <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__uicontrol159431826474"><b>Direct Recovery</b></span> if the copy is generated when the <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__uicontrol184781526184619"><b>Automatic Indexing of Copies Archived to Tapes</b></span> function is enabled and is archived to tapes. For other copies, skip this step. The <span class="uicontrol" id="EN-US_TOPIC_0000002200046005__uicontrol1261712213413"><b>Direct Recovery</b></span> function is enabled by default. In this case, the copy archived to tapes is directly restored without generating intermediate files, saving space. After this function is disabled, intermediate files will be generated during restoration, occupying space; however, the restoration speed is accelerated.</span></li><li><span>Restore a NAS file system to its original location or a new location.</span><p><ul><li>Restore data to the original location.<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p>If an OceanStor Dorado storage system with a HyperMetro relationship is used at the production end and the file system needs to be restored to the original location, use the following solutions:</p>
<ul><li>Solution 1: Manually split the file system HyperMetro domain before restoring the file system to the original location. After restoration is complete, create a file system HyperMetro domain with the secondary end. For details about how to manually split the file system HyperMetro domain, see "Splitting a File System HyperMetro Domain" in the <a href="https://support.huawei.com/enterprise/en/doc/EDOC1100214946/4acb8051/splitting-a-file-system-hypermetro-domain" target="_blank" rel="noopener noreferrer">OceanStor Dorado 6.1.x HyperMetro Feature Guide for File</a>.</li><li>Solution 2: Register the NAS share of the file system to be restored with the <span>OceanProtect</span> (for details, see <a href="en-us_topic_0000002200046089.html">(Optional) Step 5: Registering a NAS Share</a>). Then restore the NAS file system to a new location. The name of the restored share is the name of the NAS share that has been registered with the file system to be restored (for details, see this section).</li></ul>
</div></div>
<p><a href="#EN-US_TOPIC_0000002200046005__table1452025982813">Table 1</a> and <a href="#EN-US_TOPIC_0000002200046005__table1744425674712">Table 2</a> describe the related parameters.</p>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000002200046005__table1452025982813"></a><a name="table1452025982813"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002200046005__table1452025982813" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameters for restoring data to the original location using backup copies</caption><colgroup><col style="width:24.990000000000002%"><col style="width:75.01%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="24.990000000000002%" id="mcps1.3.4.2.6.2.1.1.3.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="75.01%" id="mcps1.3.4.2.6.2.1.1.3.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.3.2.3.1.1 "><p><span><strong>Location</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.3.2.3.1.2 "><p>Location of a file system, which cannot be modified.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.3.2.3.1.1 "><p id="EN-US_TOPIC_0000002200046005__p8346220532"><strong id="EN-US_TOPIC_0000002200046005__b7801200193818">Clients</strong></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.3.2.3.1.2 "><p id="EN-US_TOPIC_0000002200046005__p134616209314">Select clients for performing backup jobs.</p>
</td>
</tr>
</tbody>
</table>
</div>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000002200046005__table1744425674712"></a><a name="table1744425674712"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002200046005__table1744425674712" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameters for restoring object storage archive copies and tape archive copies to their original locations</caption><colgroup><col style="width:24.990000000000002%"><col style="width:75.01%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="24.990000000000002%" id="mcps1.3.4.2.6.2.1.1.4.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="75.01%" id="mcps1.3.4.2.6.2.1.1.4.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.1 "><p><span><strong>Location</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.2 "><p>Location of a file system, which cannot be modified.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.1 "><p><span><strong>Share Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.2 "><p>Select the share name of the target file system for restoration.</p>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_ul1132413149512"><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_li232417146518">For an NFS share, ensure that the current device has the read and write permissions on the NFS share directory and the <strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_en-us_topic_0000002164805032_b576222612114">no_root_squash</strong> option is enabled. For details about how to configure NFS share access permissions, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_li77121156195115">For a CIFS share, ensure that the current device has the read and write permissions on the CIFS share directory. You are advised to use a user in the Administrator group for backup. Otherwise, only files and directories whose read and write permissions are granted to the device can be backed up. For details about how to configure CIFS share access permissions, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li></ul>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.1 "><p><strong>Domain Name/IP Address</strong></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.2 "><p>Domain name or service IP address for accessing a NAS share.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.1 "><p><strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_b7801200193818">Clients</strong></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.2 "><p>Select clients for performing backup jobs.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.1 "><p><span><strong>Authentication Method</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.2 "><p>Authentication mode of a file system. This parameter is available when the share protocol of a backup copy is CIFS. Authentication mode of the CIFS protocol, which can be <span><strong>NTLM Authentication</strong></span> or <span><strong>Kerberos Authentication</strong></span>.</p>
<p>In <span><strong>NTLM Authentication</strong></span> mode, you need to enter <span><strong>Domain Name</strong></span>, as well as <span><strong>Username</strong></span> and <span><strong>Password</strong></span> for accessing the NAS share.</p>
<p>In <span><strong>Kerberos Authentication</strong></span> mode, choose the Kerberos authentication information. If a NAS share is registered for the first time, click <span><strong>Create</strong></span> and configure Kerberos authentication information. <a href="en-us_topic_0000002200046089.html#EN-US_TOPIC_0000002200046089__table93413354118">Table 2</a> describes the parameters.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.990000000000002%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.1 "><p><span><strong>Overwrite Rule</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.01%" headers="mcps1.3.4.2.6.2.1.1.4.2.3.1.2 "><p>If files with the same names exist in the restoration path, you can choose to replace or skip existing files.</p>
<ul><li><span><strong>Replace existing files</strong></span></li><li><span><strong>Skip existing files</strong></span></li><li><span><strong>Only replace the files older than the restoration file</strong></span></li></ul>
</td>
</tr>
</tbody>
</table>
</div>
</li><li>Restore data to a new location.<p><a href="#EN-US_TOPIC_0000002200046005__table429861453516">Table 3</a> describes the parameters for restoring data to the <span><strong>OceanStor V5</strong></span>, OceanStor Pacific, or NetApp ONTAP.</p>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000002200046005__table429861453516"></a><a name="table429861453516"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002200046005__table429861453516" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Parameters for restoring data to the <span><strong>OceanStor V5</strong></span>, OceanStor Pacific, or NetApp ONTAP</caption><colgroup><col style="width:25.11%"><col style="width:74.89%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="25.11%" id="mcps1.3.4.2.6.2.1.2.2.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="74.89%" id="mcps1.3.4.2.6.2.1.2.2.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="25.11%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.1 "><p><span><strong>Storage Device</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="74.89%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.2 "><p>Select the storage device that resides at a new location.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="25.11%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.1 "><p><span><strong>Share Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="74.89%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.2 "><p>Select the name of the share that accesses a file system. If no share is available, click <span><strong>Register</strong></span> to add a NAS share. For details about NAS share registration parameters, see <a href="en-us_topic_0000002200046089.html#EN-US_TOPIC_0000002200046089__table1929515516558">Table 1</a>.</p>
<div class="note" id="EN-US_TOPIC_0000002200046005__note7377042194715"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="EN-US_TOPIC_0000002200046005__ul1132413149512"><li id="EN-US_TOPIC_0000002200046005__li232417146518">For an NFS share, ensure that the current device has the read and write permissions on the NFS share directory and the <strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002164805032_b576222612114">no_root_squash</strong> option is enabled. For details about how to configure NFS share access permissions, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li><li id="EN-US_TOPIC_0000002200046005__li77121156195115">For a CIFS share, ensure that the current device has the read and write permissions on the CIFS share directory. You are advised to use a user in the Administrator group for backup. Otherwise, only files and directories whose read and write permissions are granted to the device can be backed up. For details about how to configure CIFS share access permissions, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li></ul>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="25.11%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.1 "><p id="EN-US_TOPIC_0000002200046005__p1259181113714"><strong id="EN-US_TOPIC_0000002200046005__b83934218124">Channels</strong></p>
</td>
<td class="cellrowborder" valign="top" width="74.89%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.2 "><p id="EN-US_TOPIC_0000002200046005__p18286105241210">Number of subjobs that can be concurrently executed on the clients when restoration is executed. The default number of channels for the NAS file system is <strong id="EN-US_TOPIC_0000002200046005__b7942542112618">10</strong>, and the maximum number is <strong id="EN-US_TOPIC_0000002200046005__b1394234217263">40</strong>.</p>
<p id="EN-US_TOPIC_0000002200046005__p12591131112713">More channels indicate better backup performance and a higher NAS share access rate. However, more CPUs and memory of the client will be occupied. Each channel occupies about 200 MB memory.</p>
<p>For 1.5.0, you are advised to reduce the number of channels due to limited container resources if the client is deployed on the <span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046061_text1999610369555">OceanProtect</span>.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="25.11%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.1 "><p><strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_b7801200193818_1">Clients</strong></p>
</td>
<td class="cellrowborder" valign="top" width="74.89%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.2 "><p>Select clients for performing backup jobs.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="25.11%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.1 "><p><span><strong>Overwrite Rule</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="74.89%" headers="mcps1.3.4.2.6.2.1.2.2.2.3.1.2 "><p>If files with the same names exist in the restoration path, you can choose to replace or skip existing files.</p>
<ul><li><span><strong>Replace existing files</strong></span></li><li><span><strong>Skip existing files</strong></span></li><li><span><strong>Only replace the files older than the restoration file</strong></span></li></ul>
</td>
</tr>
</tbody>
</table>
</div>
<p><a href="#EN-US_TOPIC_0000002200046005__table1248313820599">Table 4</a> describes the parameters for restoring data to OceanProtect 1.3.0 or later or OceanStor Dorado V700R001/OceanStor V700R001/OceanStor Dorado 6.x/OceanStor 6.x.</p>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000002200046005__table1248313820599"></a><a name="table1248313820599"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002200046005__table1248313820599" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Parameters for restoring data to OceanProtect 1.3.0 or later or OceanStor Dorado V700R001/OceanStor V700R001/OceanStor Dorado 6.x/OceanStor 6.x</caption><colgroup><col style="width:24.779999999999998%"><col style="width:75.22%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="24.779999999999998%" id="mcps1.3.4.2.6.2.1.2.4.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="75.22%" id="mcps1.3.4.2.6.2.1.2.4.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><span><strong>Storage Device</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>Select the storage device that resides at a new location.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><span><strong>File Systems</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>Select the target file system for restoration.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><span><strong>Share Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>Select the share name of the target file system for restoration.</p>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_ul1132413149512_1"><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_li232417146518_1">For an NFS share, ensure that the current device has the read and write permissions on the NFS share directory and the <strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_en-us_topic_0000002164805032_b576222612114_1">no_root_squash</strong> option is enabled. For details about how to configure NFS share access permissions, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li><li id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_li77121156195115_1">For a CIFS share, ensure that the current device has the read and write permissions on the CIFS share directory. You are advised to use a user in the Administrator group for backup. Otherwise, only files and directories whose read and write permissions are granted to the device can be backed up. For details about how to configure CIFS share access permissions, see <a href="en-us_topic_0000002164645244.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li></ul>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><strong>Domain Name/IP Address</strong></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>Domain name or service IP address for accessing a NAS share.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_b83934218124">Channels</strong></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>Number of subjobs that can be concurrently executed on the clients when restoration is executed. The default number of channels for the NAS file system is <strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_b7942542112618">10</strong>, and the maximum number is <strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_b1394234217263">40</strong>.</p>
<p>More channels indicate better backup performance and a higher NAS share access rate. However, more CPUs and memory of the client will be occupied. Each channel occupies about 200 MB memory.</p>
<p>For 1.5.0, you are advised to reduce the number of channels due to limited container resources if the client is deployed on the <span id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046061_text1999610369555_1">OceanProtect</span>.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><strong id="EN-US_TOPIC_0000002200046005__en-us_topic_0000002200046005_b7801200193818_2">Clients</strong></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>Select clients for performing backup jobs.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><span><strong>Authentication Method</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p id="EN-US_TOPIC_0000002200046005__p13448419814">Authentication mode of a file system. This parameter is available when the share protocol of a backup copy is CIFS. For details about this parameter, see <a href="en-us_topic_0000002200046089.html#EN-US_TOPIC_0000002200046089__table1929515516558">Table 1</a>.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="24.779999999999998%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.1 "><p><span><strong>Overwrite Rule</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="75.22%" headers="mcps1.3.4.2.6.2.1.2.4.2.3.1.2 "><p>If files with the same names exist in the restoration path, you can choose to replace or skip existing files.</p>
<ul><li><span><strong>Replace existing files</strong></span></li><li><span><strong>Skip existing files</strong></span></li><li><span><strong>Only replace the files older than the restoration file</strong></span></li></ul>
</td>
</tr>
</tbody>
</table>
</div>
</li></ul>
</p></li><li><span>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</span></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000002200131633.html">Restoration</a></div>
</div>
</div>

<div class="hrcopyright"><hr size="2"></div><div class="hwcopyright">Copyright &copy; Huawei Technologies Co., Ltd.</div></body>
</html>